<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  
  <div id="app"></div>

  <template id="my-app">
    <h2>{{fullName}}</h2>
    <h2>{{result}}</h2>
    <h2>{{reverseMessage}}</h2>
  </template>

  <script src="../js/vue.js"></script>
  <script>
    const App = {
      template: '#my-app',
      data() {
        return {
          firstName: "Kobe",
          lastName: "Bryant",
          score: 80,
          message: "Hello World"
        }
      },
      computed: {
        // 定义了一个计算属性叫fullname
        fullName() {
          return this.firstName + " " + this.lastName;
        },
        result() {
          return this.score >= 60 ? "及格": "不及格";
        },
        reverseMessage() {
          return this.message.split(" ").reverse().join(" ");
        }
      }
    }

    Vue.createApp(App).mount('#app');
  </script>
</body>
</html>